Oil-pump.



No., 875,370. I PATENTEDVDEGTSI, 1907. W. A. QDBLL. OIL-PUMP.

APPLICATION FILED JUNE I 1906.

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Witnesses. I Inventor UNITED STATES PATENT @FFXQE.

MZWILLARD ARANZO ODELL, OF WINNIPEG, MANITOBA, CANADA, ASSIGNOR orONE-FOURTH QTO GEORGE nDwARn NORRIS AND ONE-FOURTH o JOHN ROBERT NORRIS,or WINNrrEe,

To all'whom may concern: i :Be it known that I, WILLARD ARANZO ODELL, ofthe city of Winnipeg,.in the Prov:

ince of Manitoba, Canada, machinist, have invented certain new anduseful Im rovements in Oil-Pumps, of Which the fol owing is thespecification.

My invention relates to oil pumps, more especially those used in feedingautomaticallythe oil to the cylinders of engines or such like, and itconsists essentially of an outer casing or oil receptacle, a centrallydisposed and secured upright block section, a

passage-way extending lon itudinally in the o'werportion of -said blocr, a cylinder extending per )endicular from said passage-way, a cutoffva ve and valve seat, bearings on saidca'sing, a crank shaft journaledin said ati'ng the cu tofl' valve, an outlet check valve.

bearings, a connecting rod secured to the crank and actuating a plungerin the aforesaid cylinder, a cam extending fro1n tl 1e shaft, nieansactuated by said cam for operis an end sectional view of the pum thesection being taken in the plane X Fig. 2 Fig. 4 is a vertical sectionalview of the block, through the center of the passage-way.

In the drawings like letters of reference indicate corresponding partsin each figure.

A is an outer casing or oil receptacle, closed at the top with the coverB.

C is a centrally disposed block sectioi1fsugported on the inner face ofthe bottom 0 casing, being a portion thereof or inserted and securedthereto.

D is a bifurcated-upright portionsecured to the block and fornnng aguideway for the ing ER.

cutofi valve stem hereinafter referred to.

E 'is a. passage-way extending longitudinally the full length ofthe'block O to an opening E in the casing.

E is an outlet valve screwed inthe open-.

OIL-BUMP.

Specification of Letters Patent.

Application filed June 1. 1906- Serial No. 319.774:-

Patented Dec. 31,1907;

E is an inlet through the portion D, from the passage-way, to the oilreceptacle.

I is a working cylinder extending from be low vertically upward andthrough the passage-way E, and of a diameter equal to or greater thansaid passage-way. P

I? is a stuffing box screwed into the block section C, and at the upperextremity of the cylinder.

F F are opposing bearings secured to the upper portion of the ends ofthe casing.

I is a crank shaft supported. in the bearings having a carnG extendingtherefrom.

I I is a connecting rod secured to the crank shaft, to the bottomportion of which is secured by means of a pivot a plunger H The upperend of the connecting rod is fitted with brass steps and these are inturn fitted to the crank pin K. The plunger H extends downwardly throughthe stufiing box into the cylinder I and is slidable therein.

L' is a conical cutoff valve normally supported in a valve seat formedinthe passageway E L is a valve stem extending upwardly from the valveand passing through the guideway formed by the forked ends L and M is anencircling actuating spring. The end of the valve stern L 'is hooked atN and is designed to engage with the cam G when in active operation.

O is an opening through the block section C vertically below the valveseat and acting as a dash pot for the valve sternv P is a drivewheel-with a double set of ratchet teeth one set P 'extending around theperipher and' the other P around the outer edge 0 the inner face.

R is a spring pawl secured to the end of the casing A and engaging theratchet teeth P on the inner face of the wheel.

A lever S is revolubly secured on the crank shaft and adjoins the outerface of the wheel P. Inwardly offset from the face of the lever is abearing for a spring pawl S which engages the ratchet gearing on theperiphery of the wheels i In operation the oil purnp is secured inproximlty to the cylinder or such like and the lever S is connected by alinkmotion to .thecrosshead of the engine.

The oil tank or receptacleA is filled with oil to be fed.

From the check valve E a pi e leads toi the cylinder. The motion of t edriving At the beginning of the upstroke of the plunger the check valveis closed and the cutoff valve 0 en, thus allowing a direct passage tothe oil 0 amber.

Throughout the upstroke, oil is drawn into the cylinder and when theplunger isin its up er position or thereabouts the cutoff va ve isclosed automatically and the down stroke of the plunger forces the oilout through the; heck valve to the cylinder.

' The operation of the cutoff valve is directly controlled by theextending cam G which, in the rotation of the shaft engages the hook atthe upper extremity of the valve stem carrying it upwardly till the camis forced, due to the rotation of the shaft to clear the hook and thevalve stem being set free is forced downwardly by the, actuating springM, closing the cutoff valve. It is tobe noted that this is aparticularly-active cutofl.

The various position of the plunger and the cutoff valve arepredetermined throughout the stroke by the relative position of thecrank pin and the cam.

What I claim as my invention is:

1. In a device of the class described, the combination with an inclosedcasing forming an oil receptacle, of a lower solid portion centrallydisposed therein and having a passageway extending longitudinallythrough the said portion and provided with an inlet opening into thepassage-wa from the receptacle,

an outlet valve secure in the passage-way,

a vertical working cylinder formed.in the naled in the casin aconnecting rod extending from the cran pin to the plunger, a camprotruding from the shaft, a spring ressed inlet cuto valve extendinginto and t ough the assage-way, a hooked shank or stem extendingupwardly from the inlet valve and designed to engage the cam, and meansfor revolving said shaft, as and for the purpose specified.

2. In a device of the class described, the combination with an oilreservoir having an inner block portion, said portion having apassage-way connecting the interior and the exterior of the reservoir, acylinder communicating with the passage-way through the side wallsthereof, a plunger operating in said cylinder, an eccentric actuatingsaid plunger, a drive shaft for the eccentric, a second cylindercommunicating with the passage-way through the side wall thereof, aconical valve operating in-said second cylinder, a hooked stem to thevalve, a cam on the drive shaft for engaging with the stem, a helicalspring embracing the stem and adapted to seat the valve when released bythe cam and a valve in the passage-way, said valves being located onopposite sides of the plunger.

WVILLARD ARANZO ODELL.

Witnesses:

K. MCPHAIL, GERALD S. ROXBURGI-I.

